Highly effective touch protection against accidental contact . Ergonomically designed, with a user friendly lever for effortless switching . MCB with patented unique SLR (Slide Latch-Release) feature for tool free removal from DIN rail. It also allows individual MCBs to be removed from bus mounted assembly . Enables firm mounting of Bus bar together with wire and front access of wires for safer installation . To highlight exact switching position, easily recognizable color coded ON-OFF is embedded on the attractive grey lever.